using System;
using Goap.Agent.Core;
using Goap.Core;

namespace Goap.Runtime
{
    public abstract class LocalWorldSensorBase : ILocalWorldSensor
    {
        public IWorldKey Key => this.Config.Key;
        public virtual ISensorTimer Timer => SensorTimer.Always;
        public IWorldSensorConfig Config { get; private set; }
        public void SetConfig(IWorldSensorConfig config) => this.Config = config;

        /// <summary>
        ///     Called when the sensor is created.
        /// </summary>
        public abstract void Created();

        /// <summary>
        ///     Called when the sensor needs to update. Use this for caching data.
        /// </summary>
        public abstract void Update();

        public Type[] GetKeys() => new[] { this.Key.GetType() };

        /// <summary>
        ///     Senses the world data using this sensor.
        /// </summary>
        /// <param name="data">The world data.</param>
        /// <param name="agent">The action receiver.</param>
        /// <param name="references">Use this to get cached component references on the agent</param>
        public void Sense(IWorldData data, IActionReceiver agent, IComponentReference references)
        {
            var state = data.GetWorldState(TypeReSolveHelper.ResolveType(this.Key));

            if (!this.Timer.ShouldSense(state?.Timer))
                return;

            data.SetState(this.Key, this.Sense(agent, references));
        }

        /// <summary>
        ///     Senses the world data using the specified action receiver and component references.
        /// </summary>
        /// <param name="agent">The action receiver.</param>
        /// <param name="references">Use this to get cached component references on the agent.</param>
        /// <returns>The sensed value.</returns>
        public virtual SenseValue Sense(IActionReceiver agent, IComponentReference references)
        {
#pragma warning disable CS0618 // Type or member is obsolete
            return this.Sense(agent as IMonoAgent, references);
#pragma warning restore CS0618 // Type or member is obsolete
        }

        [Obsolete("This should not be called anymore! Use 'Sense(IActionReceiver agent, IComponentReference references)' instead.")]
        public virtual SenseValue Sense(IMonoAgent agent, IComponentReference references)
        {
            throw new GoapException("This should not be called anymore!");
        }
    }
}